The Oceans - Chapter 2: Tides

Question 1

Periodic changes in the elevation of the ocean surface at a specific location

Answer 1

Tides

Question 2

Tides result from the _____ exerted upon the earth by the moon and (less extent) the sun

Answer 2

graviational attraction

Question 3

True or false: the moon’s gravitational force can cause the water to bulge on the side of the earth nearest the moon. Also, an equally large tidal bulge is produced on the side of the earth opposite the moon.

Answer 3

true

Question 4

Since the position of the moon changes only slightly in a single day, it is the _____ that remain in place while the earth rotates between them

Answer 4

tidal bulges

Question 5

During the day a person experiences how many high and low tides?

Answer 5

2 and 2

Question 6

After about how many days does one cycle of the time of moonrise complete and another begin?

Answer 6

29

Question 7

Why are the oceans more effected than the solid earth by moon’s gravity?

Answer 7

Because the ocean is mobile

Question 8

Why is the sun less effective than the moon in causing tides?

Answer 8

it is so far away

Question 9

What do we call higher tidal bulges and lower tidal troughs?

Answer 9

High and low tides

Question 10

What do we call the high and low tides together during the moon’s new and full stages?

Answer 10

Spring tides

Question 11

True or false: the sun and moon are aligned during the new and full moons

Answer 11

True

Question 12

What do we call less dramatic tide ranges that happen during first and third quarters of moon?

Answer 12

neap tides

Question 13

What are the three types of tides?

Answer 13

Semidiurnal
Diurnal
Mixed

Question 14

This type of tide fits the twice daily pattern described earlier

Answer 14

Semidiurnal

Question 15

What are diurnal tides?

Answer 15

These tides are characterized by a single high and single low

Question 16

What type of tide do we have here in the Atlantic?

Answer 16

Semidiurnal

Question 17

This type has an inequality of high water heights, low water heights, or both

Answer 17

mixed

Question 18

The term used to denote the horizontal flow of water accompanying the rise and fall of the tide

Answer 18

Tidal current

Question 19

Tidal currents that advance into the coastal zone as the tide rises

Answer 19

Flood currents

Question 20

The tidal currents that move seaward as the level of the tide falls

Answer 20

ebb currents

Question 21

Deposits created by tidal currents

Answer 21

Tidal deltas

Question 22

Two ways that tidal deltas may develop

Answer 22

flood deltas (landward)
ebb deltas (seaward)

Question 23

True or false: tides can be used as a source of energy

Answer 23

true